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Finding the Fourth Proportional to 114,776.30, 158,345.94 and 66,369.32

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Solution

The fourth proportional to 114,776.30, 158,345.94 and 66,369.32 is: 91,563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,776.30 : 158,345.94 = 66,369.32 : x
  2. Step 2: Convert to fraction form
    114,776.30/158,345.94 = 66,369.32/x
  3. Step 3: Cross multiply
    114,776.30x = 158,345.94 × 66,369.32
  4. Step 4: Simplify right side
    114,776.30x = 10,509,312,362.56
  5. Step 5: Solve for x
    x = 10,509,312,362.56/114,776.30
  6. Step 6: Final answer
    x = 91,563.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.